Doubling up on charges

I decided to cancel my Cartrack service as it was not a requirement from insurance and had to save some money. I dis the necessary and had a phonecall with them to cancel. I was informed that as it’s a rental, I will have to pay a larger amount to cancel. That’s all fine to which I agreed. After the call I received an sms that the amount is payable with their banking details. So naturally I made the EFT. Come end of month, tjey now debited the amount as well. So now I have paid double the cancellation and it has essentially become a case if all my debit orders are now going to go through. And if it doesn’t and I incur penalties, who’s problem will that be? Now I will most probably hear the age old line and of 3-5 business days when they took it in a second even though I already paid. Now I have to incur interest charges in credit cards to try and unsure my debit orders go through from my normal account. I am now happy that I cancelled.